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Health, 20.09.2019 19:00 andrecoral105

What are some of the natural defenses that human bodies have to keep pathogens out?
a. cilia, tears, and skin
b. cilia, skin, and clothing
c. antibiotics, vaccines, clothing
d. skin, eyelashes, and vaccines

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What are some of the natural defenses that human bodies have to keep pathogens out?
a. cili...
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